Larry from United Auto would pull the tranny and down pipes and get the turbos from underneath without pulling the motor.. I watched him do it a couple times. Saves alot of time but in hinesight, Its definately better to pull the motor to get any problems before they happen-PM-preventive maintenance(turbo coolant lines, harness, etc). I believe the 530BB and turbos below are just able to be squeezed out through the bottom. All others above the 530's have to have the engine pulled. Good luck.. Replace what you can while your there. Dont want to pull the motor again for something stupid. Hey Joe Nova.. Whats happenin dude?